High efficiency gas heater with fixed premixed combustion in a compact footprint and low height. Modulating burner maintains accurate spa and pool temperature by turning down gas input when water temperature is within 1 degree of set point. Self-cooling headers and corrosion resistant copper nickel heat exchanger. Simple flue kit to convert from outdoor to indoor installations. Sophisticated thermostat diagnoses heater status, hours of use and consumable parts usage. Easily adjustable feet enable simple leveling of heater on uneven installation pads.
\nLimited 5 year warranty.